Image for a portion of a display screen



The FIGURE is a front view of an image for a portion of a display screen showing our new design.

The broken line showing of a circular region and the unshaded area there within forms no part of the claimed design. The broken line showing of the remainder of the taskbar and the portion of the display screen are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for an image for a portion of a display screen, as shown and described. 